All I desire is, that my poverty may not be a burden to myself, or make me so to others; and that is the best state of fortune that is neither directly necessitous nor far from it. A mediocrity of fortune, with gentleness of mind, will preserve us from fear or envy; which is a desirable condition; for no man wants power to do mischief.
Seneca the YoungerIf thou wishest to get rid of thy evil propensities, thou must keep far from evil companions.
Seneca the YoungerBut when you are looking on anyone as a friend when you do not trust him as you trust yourself, you are making a grave mistake, and have failed to grasp sufficiently the full force of true friendship.
Seneca the Younger